Hello everyone, here is the revised version of 'Apprentice of Ophis'. I may upload the first few chapters fast (depending on how much changes I make); but bear in mind that I forced myself to write last time and it didn't go well, so I will update the story according to my pace.

Please keep in mind that this is NOT Naruto transferring to DXD world kind of story. So Naruto here will be slightly different than canon.

Lastly, if there are any mistakes in the chapter, I will fix 'em and notify you guys about the update on the next chapter.

Disclaimer: Do not own Naruto or High school DxD.

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Everywhere i looked, I saw fire. No matter how far i searched, it was all I could see.

I was the only person to survive, standing in the middle of the carnage. But I didn't know for how long as the wounds I received were grave. Using my broken arm, I was cradling her dying body close to my chest as my other hand was holding my savior. The weapon, which had a simple design and was glossy pearl white, helped me to take my revenge against the fiends that destroyed the town, my hometown.

The agony filled screams of my friends and fellow townsfolk fell silent long ago. but the fire didn't stop, It kept burning as strong as ever while incinerating the remains of the people and their homes mercilessly. Anger and despair was all i felt as I watched the orphanage and the town I grew up being destroyed right in front of me. I was able to kill the monsters who did this, but I couldn't save anyone, not even my little sister.

I prayed, to the gods, to the angels and even to the devils, to save us, to save my sister. None answered my prayers. My tears have dried up and my voice had become hoarse from screaming. But I refused to stop believing, I refused to die without giving my last. So this time I prayed to my weapon, to my last hope for a miracle. I screamed at it with a broken voice as my blood replaced my tears.

I wasn't sure how and why. But words escaped my mouth without my command. Instead of fighting it, i let the words flow.

"O Spear. The true Holy Spear which pierces through God.

Suck the ambition of the King of Domination sleeping within me and pierce through the gap of blessing and destruction.

You. Announce the will, and turn into a glow."

As I chanted the words, my body started to feel light as if all my negative emotions have been lifted from me. I knew I shouldn't have felt like that but I couldn't help it, it was as if someone or something was saying everything was going to be alright in a soothing voice and whispering to me to just wish.

So I did.

I wished what had been in my mind for all this time,

"Save us."

I was looking at the burning town, which looked more like a scene from a tragic movie. And in a flash, the fire was gone and so were the dead bodies. Everything was back to normal as if nothing had ever happened. People were walking around and going on with their daily lives like usual. I could even hear the distinct cheerful voices of my friends coming from the orphanage. Suddenly my breathe hitched as I slowly looked down. My sister was lying there with her eyes closed. She was sleeping, no wounds nor erratic breathing. Nothing. She looked as peaceful as ever.

I stared at the spear and slowly brought it to my chest, cradling as if it was my lifeline.

I felt another presence. I don't know how I was able to sense her, maybe it had something to do with my spear. But the large amount of power she gave off made me feel weak and small. Compared to her, those monsters were like bugs flying in the sky where as her power resembled the endless sky itself. I was scared. Shaking slightly, i tilted my head back to look at her.

I saw her standing a few feet away from me with a stoic expression. She was wearing a strange black Lolita costume. Her eyes were emotionless as they bored into mine. I could hear my heartbeat increasing with each step she took toward me. It felt like eons had passed when she stopped in front of me. I tighten my grip on my baby sister and my weapon. She didn't even pay any attention at them as if they didn't matter. My body twitched visibly when I felt her move. To my surprise the only thing she did was stretch out her hand to me.

In that moment I saw something in her eyes. I didn't know what it was but somehow it made me feel safe and protected.

I didn't even notice when my hand reached out to her. And i might have imagined the slight upward twitch her lips did.

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XxXxXxXxXxXxXxXxXxXxXxXxXxXxXxXx

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Ten Years Later

Hell,

This was one of the places that Naruto was not comfortable visiting, and he blamed it on the nature of his powers. Usually dark areas or realms like these wouldn't have any effect on him if he activated his powers to shield himself from the corrupted energy. But right now he was on a mission which was to check up on the youkai clan that was living here in hell; and if he would use his holy powers then he would be sticking out like a sore thumb, which was something he have to avoid at all costs because he had to do this mission without notifying the devils.

Naruto sighed for the umpteenth time, "Shits that I do for my friends."

He took out a note and read it again. It was about the Nekoshou clan, a special type of Nekomata and considered the strongest among their species. He just couldn't find the reason why such a strong clan would choose to live in Hell out of all the places. He grumpily put the note back in his pocket. He didn't like to do recon or stealth types of missions; because Naruto knew that he wasn't really good at these kinds of missions as he was more of a knocking on the front door kind of a guy.

His thoughts were interrupted when he heard series of explosion nearby. Without a second thought, he rushed over there. And what he saw when he reached there halted him on his tracks. A horde of devils, all armed and ready for blood, were surrounding one girl. But the fact that actually surprised Naruto wasn't the scene in front of him but rather seeing who the girl was; she was a Nekoshou. Naruto really didn't know where he should laugh or cry.

"Ok, I have to handle this very carefully." Naruto took a deep breath and coughed loudly to get their attention, he immediately regretted it as in seconds half of the devils were on him; "The hell! I didn't even open my mouth." He jumped back to create some space between them. Naruto hoped that he could be able to talk them out of this, but he highly doubted it.

"You must be an extra devil. Beat it or we'll kill you too." One of the demons barked at him who looked like he was the leader of the pack.

Before Naruto could say a word, his eyes met the girl's. He remembered one thing that his best friend always used to tell him; if you looked into a person's eyes, sometimes you would see into their soul. It was this moment that Naruto understood what he actually meant. Because the moment his eyes met hers, Naruto saw himself all those years back. Helpless and cornered, praying to be saved.

So Naruto did what he was best at doing; he followed his stretched out his arm and called for his weapon. The moment it came to view, every devil, even the girl, was shocked and took few steps back involuntarily. Naruto couldn't blame them because their reaction was something to be expected. Naruto gave a small sigh and looked at the scared devils. They instantly knew what was going to happen. Unfortunately for them, they weren't fast enough.

"Infinite god style: Hundred thrusts." His hand blurred as the deadly strikes from his holy weapon descended on the scared and unprepared devils. They didn't have time to scream, let alone dodge as they ceased to exist in mere seconds.

Naruto looked around to make sure all the devils were dead and then his eyes met the girl who flinched at his gaze; "Now how to do this?" Naruto retracted his spear and put up both of his hands, "I came in peace."

The girl blinked, looked around to see the destroyed environment caused by him and then back at him.

"Fuck," Naruto ran his fingers through his hair, "Ok look, I will be honest here. I was sent here by Yasaka-nee-sama to check up on the Nekoshou. And for some reason I get the feeling something went horribly wrong. Would you mind telling me what happened?"

The girl relaxed but still didn't drop her guard, "Will you help us?" Naruto didn't miss the urgent tone in her voice.

"Didn't i just do that?" He pointed at his surroundings.

"Then please follow me, we could still save the rest." The desperation in her voice made Naruto tensed. He knew something was wrong and now he was going to find out how bad it was.

Along the way toward the clan village, Naruto asked the girl what was going on. He needed to know what was coming and what he could do. The girl was reluctant at first but she opened up soon explained how after losing her parents, she and her sister were taken in by a Devil who reincarnated her as his Bishop. While serving the devil, she became extremely powerful, even surpassing her own master which became her undoing. As to keep her on a leash her master threatened her with her sister's life and was close to harming her. In a fit of rage she attacked her master and things escalated into something bigger; she was forced to kill him. Now she was branded as a stray devil, while many other devils started to hunt down the rest of the Nekoshou.

It didn't take long before they reached the village, or what was left of the village. Now, Naruto was not a stranger to war or what comes after it, because of how his master trained him. Even then he would never forget what he saw there. The devils weren't killing the Nekoshou in a sense of justice, oh no, they were killing them just for the fun of it. They were killing the old and the children ferociously like they were dirt. Some even pinned down a few girls with sharp weapons jabbed into their limbs. And they were raping them, laughing while doing it. Quite a few Nekoshou gathered together and formed a defensive line to protect the weak. The devils hovering around the group were taunting them, knowing full well that there was no hope for the cat women.

'Badump'

Naruto looked at his hand and saw his partner there, waiting for his words. It seemed that it understood what Naruto truly wanted.

He didn't shout nor did he increase his energy; he simply raised his spear and immediately the whole village was covered with a thick holy aura making everyone's head to snap towards him. He didn't wait one second as he started to chant the words,

"O Spear. The true Holy Spear which punishes the evil.

Pass thy judgment to the sinners and bring forth the light of redemption for the innocent.

You. The Savior and the slayer, announce your verdict."

He looked at the devils with anger and disgust.

"Heaven's Law."

A holy light enveloped Naruto and within seconds it expanded and soon covered the whole village. The hunters now became the hunted. The moment the light touched the devils, they were burned from within, they screamed and tried to counterattack but none of their powers were working. The fire didn't burn them down instantly, because it was meant to give them a slow and an agonizing death. But it worked differently for the Nekoshou, those that were injured or exhausted were rejuvenated but the light couldn't do anything to those that passed away. It did heal their bodies as a mean to give them a proper burial later.

Naruto watched with cold eyes as the screaming of the devils slowly died down. Some strong ones even tried to get away but they couldn't escape the barrier. Some even tried to attack Naruto but their attempts were futile. Naruto made sure that each and every of the devil was burned slowly before releasing his technique.

It was a ruthless move but even someone like him knew that monsters like them didn't deserve one ounce of mercy.

It was over in a few minutes. Naruto took a deep breath, the light created a barrier in itself so no one else would notice the intense holy aura the place emitted, but he was sure more devils would be coming soon when they wouldn't be able to contact these devils. Naruto started to rub his forehead, he wasn't at loss of what to do next. It was just that he knew that shit was about to hit the storm when Yasaka would find out what happened here.

But before Naruto could do anything, a few Nekoshou lashed out at the stunned girl beside him and would've hit her if Naruto didn't shield her on time. Seeing Naruto with his oppressive aura and legendary weapon, they whimpered in submission and backed away.

"Why is the wrench here?" A woman shouted from the back.

"It is because of you that this happened. Why did my family have to die because of you?" Bellowed another angry girl. Naruto didn't have to be a genius to see where this was going.

"Calm down." Naruto lightly brought down his spear to the ground with a thump. Immediately the whole area fell silent., "Works like a charm."

All the Nekoshou were looking at Naruto with admiring and respecting gazes, though some still had a trace of fear in them. And Naruto couldn't blame them. Taking a relaxing stance, Naruto started to speak up softly, "I think introductions are in order, my name is Naruto. I am a mercenary and before you ask, no I am not involved with any of the factions. As for why I am here, Yasaka-san has sent me to check up on you people seeing that she couldn't send one of her own all the way down here." With that intro, Naruto lowered his head slightly, "I sincerely apologize for not arriving I had, then I could have saved many more."

"It's not your fault, Naruto-sama. If anyone was to be punished it should be her." A woman gritted her teeth as the rest nodded their heads in agreement. They looked at the girl next to him, their eyes showing nothing but pure hatred. She was quiet the whole time, accepting all the lashings her kind was throwing at her.

"This was not her fault." Hearing that, she looked at Naruto with wide eyes. Everyone was taken aback as well, "All she did was protect her sister. And even you people saw that the devils that attacked you didn't do it for justice, it was for their pleasure. Her killing her devil master was just the excuse they needed." All the Nekoshou calmed down a bit.

"What now?" Another random Nekoshou asked.

"Now I will send you all to Yasaka-san. I have a teleportation device that will create a bridge from here to a city near Kyoto. Yasaka-san's people are there, tell them that I sent you and give them this. They will take you to Yasaka-san directly." With that Naruto gave them a pendant, something that Yasaka gave him beforehand in case things go awry, "Also take the deceased with you and give them a proper burial. And when you meet Yasaka-san please tell her exactly what transpired here."

"Wait …." The girl next to Naruto nearly screamed out.

"Don't worry, we are going to save your sister after this." He grinned back in reply. She was stunned and so were the rest.

"Also, she won't be coming with you as I will take her and her sister with me to somewhere safer. So rest assure, Yasaka-san will have no problem protecting all of you." Everyone understood what Naruto meant by that. With the main culprit's absence, the devils wouldn't be able to demand anything from the Youkai faction and seeing that they started the injustice killing they had to act carefully.

Naruto took out an orb and threw it in front of him. Before the orb could even hit the ground, it exploded creating a portal. A hazy image of a small city could be seen through the portal. With reluctant steps, slowly one by one all the Nekoshou left the village taking the injured and deceased with them.

Within five minutes there wasn't a single soul left in the village except the girl and Naruto.

"So, I didn't get your name." Naruto asked after a while with a sheepish smile, rubbing the back of his head.

"It's Kuroka, nya~" She said with a gentle smile, though it was a tired smile, she looked extremely beautiful.

"Let's go save your sister, shall we?"

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Few Days Later

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It took longer to find Kuroka's sister than what Naruto anticipated; and it was solely because of the chaos he created and for that the whole underworld was on high alert. The devils didn't know what happened as there were no traces of a single Nekoshou as well as the devils that went after them. So, Naruto had to pull some favors to get the information about the whereabouts of Shirone, Kuroka's sister.

What they found out didn't please any of them at all. It seemed that Shirone, who was in a highlyguarded prison, would be taken to a stadium from the prison to be executed publicly. Kuroka almost rushed to the prison but somehow Naruto was able to convince her not to do that. As much as he wanted to go for the frontal attack, even he wasn't dare enough to attack a high level underworld prison when all the Maou were on high alert. So he suggested for an ambush, to strike fast and swiftly when they would transport Shirone.

So here they were now, waiting to ambush the transport vehicles. They didn't have to wait long when they sensed the devils approaching. Naruto put his hand on Kuroka's bare shoulder and softly whispered, "Calm down, we are not gonna let anything happen to her."

He smiled when he felt Kuroka relaxing a bit; he was afraid that the girl would have jumped and attacked abruptly. When they came within his range, Naruto got up and extended his hands towards them,

"Light Release: Beacon of Light."

The area where the devils were immediately lit up to the point where everything became pure white, and that was Kuroka's cue. She attacked when the guards were all blinded and disoriented. Naruto was impressed by Kuroka's agile moves and her cunningness in the battle as this was the first time he was actually seeing it.

Naruto started walking towards the battleground, but Kuroka finished everything before he even reached there. He was glad that it went smoothly but he knew that something was amiss. But he paused just for a second to cherish the sight in front of her. Kuroka was hugging Shirone who was crying in her embrace.

"Nee-chan, nee-chan, you're really here!" The small petite girl was hugging her elder sister with all her might, refusing to let go.

"Of course, I promised, didn't I? That I will always protect you, my baby sister." Kuroka started to soothe Shirone, even though her eyes were shining with unshed tears.

The few second that Naruto gave to the sisters to reconcile proved to be fatal. From one the destroyed carriage, purple light started to emerge and within second one person stepped out from the light. Although the person literally appeared in five second, it was enough for Naruto to put a mask over his face, to conceal his identity. Seeing him, Kuroka's face lost its color as she hugged Shirone tighter. And that confirmed Naruto's suspicion;this was a trap to lure them out.

Tightening her hold on Shirone, Kuroka jumped back and crept behind Naruto. But before she could utter a word, Naruto raised his arm and stopped her from saying anything. Because he knew how important information could be and he definitely didn't want to reveal anything to the person in front of him.

"Is it safe to assume that you are Falbium Asmodeus?" Naruto asked politely.

"Glad you know who I am, so would you people mind making this less troublesome and surrender peacefully." He said with a yawn.

"Can I ask you a question?" He shrugged, so Naruto continued, "Do you know the real story behind Kuroka's action? Not the bullshit one." He raised an eyebrow when hearing Naruto's question.

"So my assumption was correct. He did something stupid, didn't he?" Falbium asked Kuroka but didn't wait for her answer, "Regardless, she has to stand for trial. There were other ways to solve the problem than killing your master."

"Really? Then why did those devils attack the innocent Nekoshou? If I hadn't intervened those devils would have slaughtered all of them, including the elders and children. Would they have been put for trial for their actions?" His posture changed as he looked critically at Naruto. It was at that moment that Naruto realized that he messed up, because he just literally told the Maou that he was the one that took out all those devils.

"Even as a Satan there are things that even we can't control. But rest assure, she will be judged wisely." Falbium powered up and with a snap of his finger he summoned hundreds of demonic warriors that surrounded Naruto and the Nekoshou sisters instantly. This was why Falbium was chosen as one of the great four Satans. He could summon hundreds of demonic knights that were equivalent to High class devils and some of the special knights were just as strong as the Ultimate class devils, his army was known as the 'Demonic Spartan Army'. The scary part wasn't the sheer amount orthe raw power of this demon army but it was the mind of their summoner. With his superior army and his strategic mind, Falbium could change the outcome of any battles in matter of minutes.

But that didn't mean anything to Naruto.

"So you can't control or judge your fucking people as they slaughter an entire race just for fun but you need to judge an older sister for protecting her younger." The sheer amount of anger that flowed out from Naruto even made the great Satan to step back.

Naruto took a deep breath; he has heard enough, he has seen enough. He looked back at the sisters and wanted to say it was going to be alright, but seeing the trust and happiness in Kuroka's eyes told him that she already knew it.

Naruto stretched out his arm and called for his partner. Radiating an unnatural amount of holy energy the spear materialized. Seeing the spear Falbium's eyes widened and no matter how hard he tried to hide it, Naruto was able to see a small tinge of fear in the Satan's eyes. But the moment Naruto's word left his mouth, Falbium's fear was clearly visible to him,

"Balance Breaker: True Longinus Götterdämmerung."

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At the Stadium

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"So what's your real plan, Sirzechs?" Asked a beautiful girl with long black hair. Her violet eyes were focused on her friend beside her.

"Come on Serafall, what makes you think that?" The red-haired Satan chuckled weakly. Seeing her giving him a knowing look, he sighed in defeat.

"I was planning to give the younger sister to Rias but after the incident at the village. Things might be a bit more difficult." Sirzechs relaxed into his chair. "I hope Falbium knows what he is doing."

"What would you do if he catches the elder sister?" Serafall asked sadly, being an elder sister as well she didn't like where this was going.

"I can't let her roam freely after everything that has happened, the least I could do is to imprison her but the council would surely want her dead." Sirzechs sighed deeply as he looked at Serafall, "I can only cover for one of them."

Whatever Serafall was about to say died down at her throat when both of them felt a huge amount of unfiltered holy energy. Not a second later the whole area shook. They rushed outside and saw huge white clouds gathering around in one direction.

"Wasn't Falbium over there?" Serafall asked and immediately went into high alert.

"Guards stay here and protect the VIPs, someone get Ajuka and tell him to go there." Sirzechs looked at Serafall who nodded and instantly they took off.

By the time they reached the place the white clouds had vanished but what they saw there shocked them to their core. The legendary 'Demonic Spartan Army' was lying all around them, completely obliterated. The whole area looked as if a gigantic battle just took place. They frantically searched for their friend in that wasteland and finally their eyes landed on him.

Falbium was sitting in a defeated manner, though he didn't have any serious injuries he was unconscious. His eyes were slightly opened and his head was swaying from side to side. Serafall quickly went near him as she started to check for internal injuries.

Sirzechs looked around the battlefield one more time, he now knew that Kuroka wasn't alone and whoever was with her had enough strength to completely defeat a Satan and possessed high amount of holy energy, enough to shake an entire region at his awakening. He looked back at his friend and rubbed his forehead, things had just gone from bad to worse.

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In Real World

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All three of them face dived into the pool. Naruto immediately grabbed Kuroka by her waist and pulled her up, who in turn pulled Shirone and held her above the water. They started to make some cute hiss-like noises.

"I really need to work on my teleportation jump." Naruto muttered to himself. Slowly he waded over to the side of the pool and helped the sisters to get out. After he got out from the water, helied down on his back and before he knew what was happening, Kuroka lied down on top of him. Having such a high class luscious, wet body on top of Naruto was too much for his teenage mind. He gently grabbed her to move her to the side but it seemed today was not his lucky day.

"Well luck was never on my side to begin with."

The lights turned on and there she was standing with her ever so stoic face. The thing was, that expressionless face could fool anyone but not Naruto, not after what they went through. So he knew how pissed she was.

"I can explain ….. I think."

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Done

About Naruto's power, he will have True Longinus and his skills with it will be abnormal. I will write a small wiki about the powers of Naruto and True Longinus at the end of each chapter (hopefully) but I will only describe what is necessary. Do tell how you guys think about it.

Heaven's Law – This skill is like 'Fairy Law' but more powerful and instead of the light coming down from the sky it will come out from him. This attack is fairly strong, enough to kill hordes of any beings but it can only be used base on his emotion.

Infinite God Style – This is Naruto's spear techniques and I am pretty sure you guys can guess from where he learned it.

Light Release – You can compare this to 'Element Release' from Naruto-verse, just without the handsigns.

That's it for now. All feedbacks are greatly appreciated so please leave a review.

Till next time.